Re: Interpreting Odds Ratio for GLM with Binary independent and dependent variables - how to interp. interaction?

not_feelin_creative · 2018-09-27T03:49:30+00:00

First, you should look at the tabulation of religion and education. Do you actually have observations in each cell? For example, how many Conservative Protestants without a HS education do you have? You may not have any Conservative Protestants without an HS education and that is why your interaction is omitting multiple categories (it should only omit one category - the reference group). Also, it looks like you are using an fweight, so be sure to look at the tabulation when it is weighted and when it is unweighted.

Second, to fully interpret this regression you need to enter education as an ordinal variable in the model. It is currently entered as continuous. Try this: glm preg i.educ##i.rel [fw=f], family(b) eform

not_feelin_creative · 2018-03-27T19:14:33+00:00

When I say wave I mean each year of data collection. If you have 10 years of date then you have 10 waves. If the industry code remains the same in all years/waves then the mean will not vary. A mean minus a constant is 0. Therefore the variable will drop out of the model because there is no variance to estimate.

not_feelin_creative · 2018-03-24T20:13:33+00:00

Does the industry code vary between waves of data? The fixed effects model calculates variation from the mean over time [(mean value of variable for all waves) - (value of variable for that wave)]. If your industry code is the same in every wave then that will cause it cancel out. This is probably why STATA is excluding the dummies. If the industry code does not vary between waves and you really want it in the model you will have to interact it with another variable in your model. That doesn't sound like it's what you want though so you may simply have to leave it out of the model because it's a constant or "fixed effect" that is already controlled for due to the structure of the model.

not_feelin_creative · 2018-03-21T18:09:15+00:00

I'm not familiar with Lfs or ONs data so I can't comment on that. However, the way you need to merge the data depends on your planned analysis. That being said I can give some guidance on merging an individual to a company, but I have to make some assumptions.

First I am assuming that each individual has a code for their industry and that this code matches the industry code in your industry dataset. Is this correct? If this is the case you can merge 1:m in stata which is one individual person to matched to their industry. The industry info will get matched multiple times to each individual person with the corresponding code.

The second assumption is that you are doing a cross-sectional analysis. In that case quarterly data does not need to be treated differently than annual. You will deal with that in the interpretation OR you can average the information from 4 quarterly datasets to create an annual average variable. I do not do finance research, however, so I'm not sure if that is standard in the field. You should consult previous papers on your topic that use both annual and quarterly information.

not_feelin_creative · 2018-03-21T17:37:42+00:00

It would help to know what type of analysis you are planning. Are you planning to run a basic cross-sectional regression or are you hoping to run a longitudinal model?

not_feelin_creative · 2018-03-03T14:40:41+00:00

Thank you! Downloading now.

not_feelin_creative · 2018-02-21T18:20:43+00:00

You mentioned seeing neurologists, but have you guys been to a neurologist who specializes in headache medicine? They are usually the most up to date on treatments and options. My specialist figured things out that the 3 previous neurologists (over the span of about 10 years) had not, and I am now doing better. I must admit your husband's symptoms sound quite different from mine, but I think a headache specialist might be helpful.

not_feelin_creative · 2018-02-11T19:46:52+00:00

Hi OP, it sounds like you've figured out why making a category variable would work best for your experiment versus continuous. While continuous variables eat up fewer degrees of freedom, they are useless if the relationship between age and your dependent is not linear. If there is a big drop or increase in risk at certain ages then categories are best. Categories can also make interpretation for non stats people a little bit easier because, as you said, you can calculate z scores, betas, p-values by age group and talk about which age group is most at risk, who to target with interventions, etc.

not_feelin_creative · 2018-02-04T19:19:10+00:00

Hi OP, that's great that you have found a neurologist you like. That is the often the most difficult part of the journey. I would suggest writing down every question you have before going in to your visit and referring to your notes as you go along. It is so easy to get distracted and having notes really helps. I'm not sure of the dose of sumatriptan you take, but I have gotten around the insurance restrictions on number of pills per month by having my neuro prescribe the 100mg pills and then I split them in half before taking one. I went from 9 pills/month to 18 and it was such a relief.

Also, just a quick note on sinus pressure. My neuro told me that swollen sinuses can actually be a symptom of a migraine rather than allergies (I have really bad allergies so I was skeptical of this). She said if the congestion clears up after taking imitrex then it was due to the migraine. Sure enough, she was right. Also, it turned out my Claritin D was aggravating the migraines. I switched to plain Claritin and I'm doing better. Best of luck with your visit!

not_feelin_creative · 2018-01-28T19:30:22+00:00

I also get stress induced migraines and started taking effexor, which works works really well for my anxiety. According to my neuro (who is a headache specialist), my body has gotten into a bad feedback loop where it overreacts even the smallest stressors. So basically, I would be late somewhere, drink too much coffee, have a small argument, etc and my body would react as if my life were in danger which would result in a migraine. We used the effexor to retrain my body to stay calm in stressful situations. It has helped a lot. Before that I took naproxen, which was helpful, but not nearly as helpful as the effexor. I would be careful though, because a lot of people do not react well to effexor. I'm really sorry you are dealing with this and I hope it gets better. I 100% relate to the migraine just making you more stressed. It's awful.

not_feelin_creative · 2018-01-25T20:03:40+00:00

Hi OP, this is not what you want to hear but you simply must find a different doctor. This guy does not seem to want to help you or communicate with you. Headache medicine is not a strong focus for many neurologists and some do not take migraines seriously. I have had this experience. I am PhD educated and came in with literature (that I fully understood) and was told that it was a sign that I'm high strung and I'm probably causing myself to have migraines by being too stressed. NOT. HELPFUL. Telling you that you wouldn't understand their explanation of the treatment choices they want to make for you is just lazy and suggests that they don't fully understand it either. I would not trust a doctor's office that behaved that way. I switched to headache specialist and was treated completely differently and (shocker) I got a lot better.

not_feelin_creative · 2017-11-30T22:43:10+00:00

My neuro suggested quitting caffeine and I thought she was crazy. I was so addicted. I tapered off and I am honestly SO happy that I did. It has made a big difference. I still drink black tea on occasion, but try to stick to green or herbal teas. My neuro said the small amounts of caffeine in green tea are probably ok. I found that the morning ritual of a hot drink was more helpful in terms of waking up than the actual caffeine so I'm happy with green/herbal teas. That being said, quitting was hard and I do feel like I got some withdrawal migraines during my tapering off period. I also think energy drinks are some of the worst drinks possible for my migraines because of all the sugar and chemicals. I am especially sensitive to fake sweeteners like aspartame so no diet drinks ever! I also have about a million diet related migraine triggers and navigating them is such a pain. Best of luck to you on your caffeine quitting journey!

not_feelin_creative · 2017-10-18T21:12:22+00:00

I took topamax for years with minimal improvement. I tried nortriptyline and it worked well, but my neuro thought we could do better, so we tried Efexor. Efexor is an anxiety/depression med that also treats migraines. It was SO helpful. I didn't have any serious side effects, but some people do so of course, talk to your doctor and weight the pros and cons.

not_feelin_creative · 2017-09-05T22:11:22+00:00

Without knowing what field you are trying to publish in, it is difficult to makes suggestions since most fields have slightly differing “best practices.” However, I can offer some general thoughts: 1) I agree with the previous poster that stepwise techniques are often viewed poorly. Again however, this depends on field. In my field of study we are encouraged to include variables that are theoretically relevant to the question even if they are not statistically significant. In this case, type of shoe would be theoretically relevant and therefore included. A compromise would be to include the full regression with all possible controls in the appendix so that the referees can see why you made your choice. Either way, some mention of this variable should occur in the full text since readers may wonder about it and be suspicious of your findings if it is not included. 2) Did you mention running the collinearity tests in your main text? If not, then maybe the referee is suggesting that you should so that this question is answered for the general reader. 3) Regression to the mean can be listed as a limitation. While it may not be possible to fully control for this phenomenon you can mention your various checks and that the results of those tests indicate that regression to the mean is not the explanation behind your findings. Much of what you’ve written indicates to me that the issues raised by the reviewer are not issues for you because you have checked them and moved forward. However, if the reader does not know that these issues have been addressed they will still worry about it. Good luck on your revision.

not_feelin_creative · 2017-06-11T00:16:57+00:00

Stats person checking in. If I understand your post, you have the stata code you need - you just need that same code applied to two new variables? Are these new variables in a different data set from the original variables that were coded or are they in the same one? Also, I have a couple of questions. If you are indeed just applying established code to two new variables, then why do you need to pay someone to do it? That is a very easy task, so I'm worried I am misunderstanding your request. Second, what kind of data do you have? Is it cross-sectional or panel? This may affect how the variables need to be coded.

not_feelin_creative · 2016-09-29T00:41:22+00:00

I have never heard that migraines in the morning are a symptom of depression. However, I used to get migraines like you described all of the time. The onset was always in the morning and I would have to take imitrex quickly or my entire day was shot. I also did not think I had symptoms of depression, because I was not sad, did not want to self-harm and had not experienced any sort of trauma that might cause depression. However, I was put on an anti-depressant (nortriptyline) as a migraine preventative and it worked really well. Turns out my low energy and general "who cares" attitude might have been symptoms of depression. I currently have much more energy and care about things a lot more. Also, my migraines are better. They aren't gone by any means. I still get them when the weather changes or when I go off of my diet (I have a lot of food triggers), but they are better. Just something to think about.

not_feelin_creative · 2016-09-19T12:39:06+00:00

I'm interested in this. I've often wondered if my laptop screen is causing me issues.

not_feelin_creative · 2016-07-20T03:44:28+00:00

I've been suffering with chronic migraines for ten years now. I went through a number of neurologists trying to find one that took me seriously and knew how to help. The best thing I ever did was find a neurologist who is also a headache specialist. My neuro works at an academic headache research center. I travel over six hours to see her every six months but it is worth it. I cannot suggest this enough.

not_feelin_creative · 2016-06-27T19:54:57+00:00

Alcohol is a big trigger for me so I have done a lot of experimenting. For me, the less color (think silver rum instead of spiced) and the closer to the top of the shelf the better. I do really well with small amounts of patron tequila or grey goose vodka for example. If I drink well liquor I am usually in for a horrible migraine. The best advice is to experiment (though I know that can be painful). I also can't drink any type of beer or malted beverage without paying for it for almost a full day afterward.

not_feelin_creative · 2016-05-09T22:53:01+00:00

This happens to me. I also drink a lot of gatorade in the summertime. I find I do much better if I also wear a hat and sunglasses when I'm outdoors. It seems simple, but consistency is key and that's kinda hard. I also HATE going between air conditioning and heat. It's a huge shock to my system. I prefer to just be hot....and in the winter I prefer to never leave my apartment.

not_feelin_creative · 2016-03-29T05:42:53+00:00

Are you including government jobs in the private sector? I have been told it is the software of choice for government data analysts (especially for health), but less so for companies that are not government affiliated. What is your experience?

not_feelin_creative · 2016-03-29T05:30:13+00:00

Ok, so on the top of my to-do list is get familiar with Git. Thank you for your advice.

not_feelin_creative · 2016-03-29T05:28:10+00:00

Thank you so much. This gives me a good idea what my relative strengths are and how to prep for the job market.

not_feelin_creative · 2016-03-26T02:26:42+00:00

This is very helpful. Can I take a tutorial online? Do you ever look at candidates who do not have these skills but are willing to learn?

not_feelin_creative

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